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Exams > 2019 Q74 — FRTS-1 RCS Soak Purpose

2019 Q74 — FRTS-1 RCS Soak Purpose

⚠️ DRAFT
Q74 — FRTS-1 RCS Soak Purpose WE08 Pressurized Thermal Shock-EK3.1 (3.4)
Given:
• The crew is preparing to perform an RCS soak in accordance with 2-EOP-FRTS-1 (RESPONSE TO IMMINENT PRESSURIZED THERMAL SHOCK CONDITIONS)

In accordance with 2-EOP-FRTS-1, which ONE of the following completes the statement below?

During the RCS soak, the crew must maintain RCS temperature stable _(1)_.

The RCS soak is designed to reduce the temperature stresses present in the _(2)_.
A. (1) and NOT raise RCS pressure (2) Reactor Vessel
B. (1) and NOT raise RCS pressure (2) RCS piping and pressurizer
C. (1) ONLY (2) Reactor Vessel
D. (1) ONLY (2) RCS piping and pressurizer
▶ Show Answer & Explanation
✓ A. Correct. For Part 1 and IAW 2-EOP-FRTS-1 Step 29, during the RCS soak, the crew must maintain RCS temperature stable and NOT raise RCS pressure. For Part 2 and IAW 2-EOP-FRTS-1, the RCS soak is designed to reduce the temperature stresses present in the Reactor Vessel.
✗ B. Part 1 is correct. For Part 2, the RCS piping and the pressurizer are components that will be affected by an RCS soak. Consequently, the candidate could incorrectly conclude that the RCS soak is designed to reduce the temperature stresses present in the RCS piping and pressurizer.
✗ C. For Part 1, since the RCS soak is designed to reduce thermal stresses, the candidate could incorrectly conclude that during the RCS soak, ONLY RCS temperature is required to remain stable. Part 2 is correct.
✗ D. For Part 1, since the RCS soak is designed to reduce thermal stresses, the candidate could incorrectly conclude that during the RCS soak, ONLY RCS temperature is required to remain stable. For Part 2, the RCS soak is designed to reduce the temperature stresses present in the Reactor Vessel.
Ref: 2-EOP-FRTS-1 (Response to Imminent Pressurized Thermal Shock Conditions) | LO: NOS05FRTS00-02 | Source: New | Cognitive: Lower

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